Car-truck



S. KEELER. Gar-Truck.-

No. 226,324. Patented Apr l 6,1880;

UNITED STATES PATENT. Orrice.

SANFORD KEELER, OF EAST SAGINAW, MICHIGAN, ASSIGNOR OF ONE-HALF OF HISRIGHT TO WVILLIAM J. WATSON, OF CHICAGO, ILLINOIS.

CAR-TRUCK.

SPECIFICATION formingpart of Letters Patent No. 226,324, dated April 6,1880.

Application filed January 12, 1880.

To all whom it may concern Be it known that I, SANFORD KEELER, of EastSaginaw, Saginaw county, Michigan, and a citizen of the United States,have invented an Improvement in Car Trucks, of

whichthe following is a specification.

My invention consists in combining the boxes of one of the axles of arailroad-car with a spring-frame interposed between the said boxes, andcentral longitudinal bearings on the frame of the car on opposite sidesof the axle, whereby the springs of the car will have a more uniformaction, and one less detrimental to theframe and body than when I 5springs are interposed directly between the boxes of both axles and thecar-frame, as usual.

In the accompanying drawings, Figure l is a side view of a car with myimprovements; Fig. 2, an end view, partly in section; Fig. 3,

a perspective view of the improved truck, and

Fig. 4 a perspective view illustrating a modification of the invention.

In the device shown in Figs. 1, 2, and 3one end of the car-frame A hasthe usual hangers B to vertical guides, in which are adapted the boxes Dof the axle E, ordinary elliptical springs F being interposed betweensaid boxes D and the car-frame in the usual manner. The opposite end ofthe car-body, however,

rests on two springs, F F, one of which bears on a beam, G, on one sideof the axle E, and the other on a similar beam, G, on the opposite sideof the said axle. The two beams are connected together near theiropposite ends 3 5 by bars I I, which bear on the axle-boxes D D.Ordinary elliptical springs attached in the middle to the body of thecar and resting with their ends in sockets on the beams are shown in thepresen t instance; but other kinds 40' of springs may be employed.

In the modification shown in Fig. 4the bars I I are dispensed with, thesprings F F bearing directly on the axle-boxes D, and being hung attheir opposite ends to the ends of the 4 5 bars G G. The latter havecentral blocks, w, the tops of which are dished, so as to be adapted tothe convex lower ends of blocks on the car frame, thereby forming a sortof ball-and-socket joint, which permits a swinging movement of the saidbeams G G inde- 5o .pendently of the car-frame.

It will be seen that owing to the interposition of. a spring-frame suchas described between the boxes D D and central longitudinal bearings onthe car-frame on opposite sides 5 5 of the axle E, a resilient mediummore uniform in its action and in its effects on the carbody is obtainedthan when the springs are interposed directly between the boxes of bothaxles and the frame of the car, for in the lat 6o ter case the springs,acting in a measure independently of each other, permit the carframe toyield at different points distant from each other, so that constanttorsion of the said frame must take place, whereas this objection Iovercome by my improvement, which is such that the car frame and bodyshall have a central bearing at one end and side bearings at theopposite end, and will therefore be subjected to comparatively slighttorsional strains.

I claim as my invention- 1. The combination of the beams G G,connecting-bars I I, and springs F F" with the axle-boxes D D and frameof a railroad-car, as set forth.

2. The combination of the frame of a car and the axles and axle-boxes ofthe same, with springs interposed directly between the boxes of one axleand side bearings at one end of the car-frame, and a spring-frameinterposed between the boxes of the other axle and central longitudinalbearings at that end of the car-frame, as set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

SANFORD KEELER.

Witnesses:

ALFRED W. NEWTON, FRED O. ZIMMERMANN.

